Call: 01392 678082

Established 2004

Ruddlesden geotechnical

Ruddlesden geotechnical provides ground investigation, geotechnical consultancy and contamination assessment services.

Based in Exeter, but covering the whole of the UK, albeit primarily concentrated in the South West, Ruddlesden geotechnical was formed in 2004.

Ruddlesden geotechnical works on behalf of a wide client base, including local, regional and national housing developers, housing associations, commercial developers, building contractors, structural and civil engineers, architects, building consultants, quantity surveyors, local authorities and private individuals.

Development projects range from single dwellings and extensions to large housing estates, multi-storey flats, offices, industrial units, roads, slopes, schools, hospitals and basements.

The services and projects listed on this web-site provide an indication of those undertaken by Ruddlesden geotechnical, but others are carried out. If your requirement is not readily identifiable on this web-site, please contact us as we may still be able to help you.

  • AGS
  • Constructionline
  • CSCS
  • SMAS
  • ECFC trust

Latest news

Recent projects

  • Latest news

    09 Jun 2026

    Mini golf in a Cornish rock garden

    A bit of rain did not dampen the spirits at the Ruddlesden geotechnical golf day this year, when retaining the trophies became the theme of the day.Smashing balls into a field in Cornwall (Trackman driving range) was followed by lunch in the feasting barns, with the main event – mini golf in a Cornish rock garden – in the afternoon. Geoff and Sarah retained their first male and female prizes, Becky put a lot of effort in hanging on to her wooden spoon trophy, and Catherine won the nearest the pin trophy for the first time. As always, there was no winner of the ‘beat-the-boss’ prize, but this year that was only because having the same score does not mean beating!

    Mini golf in a Cornish rock garden
    Mini golf in a Cornish rock garden

  • Recent projects

    Correct Waste Classification Saves Costs

    Waste classification was undertaken on surplus soil at a residential development site in Exeter. The soil had been purchased and imported to be used as capping beneath road surfaces for the new development. However, the material was later found to be unsuitable for the proposed use. The soil had initially been classified by others as hazardous waste, due to the presence of loose asbestos fibres within the soil matrix. However, following intensive (and representative) sampling of the soil stockpiles, Ruddlesden geotechnical were able to confirm that the soil was non-hazardous waste. Classifying the waste properly, in accordance with Environment Agency guidance, saved the client significant costs, which would have been incurred if the soil were to have been taken to a hazardous waste landfill, as was originally proposed.

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  • Recent projects

    Cliff Stability Assessment, Dorset

    There was a stability risk at a cliff-top site on the Isle of Portland, as indicated by a Phase 1 Geotechnical Assessment, previously undertaken by Ruddlesden geotechnical. Ruddlesden geotechnical were commissioned to assess the potential for landslip, ascertain the likely landslip mechanism and causation and determine the relative risk of collapse. Due to restricted access, rope accesstechniques were utilised to collect rock mass data for use in structural kinematic analyses to ascertain the likely failure modes. The results of the kinematic analyses (and site observations) indicated the potential for rockfall and wedge-type failures within the top 10m of the cliff-top, confined to one particular geological unit. Remedial measures, comprising rock-bolting and meshing, were recommended to maintain the existing cliff profile and hence long-term stability of the site.

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